Does it stall at idle--highway speed or both? After it stalls does it crank ok? Have helper crank it, while visually check for spark at the spark plugs. I realize you have coil on plug ignition, so it's a pain. They do make tools that will react to bleed-through voltage, so you don't have to unplug anything. I have used a digital multimeter that would react to bleed-through voltage on plug wire, engine cranking or running. You didn't penetrate the plug wire or take it loose. It would show around 1/2 volt or a little more, I just looked for a zero reading, somewhere. I've never tried it on cop ignition.
If possible check your fuel pressure. Some Fords may not have a Schrader valve.
If it cranks good but won't start, I always to look for rpm signal, without that rpm signal, you aren't going anywhere.
Can you check for applicable trouble codes?
Friday, September 12th, 2014 AT 3:23 PM